Yes. LAGs (or bonds as they are called in Linux-land) usually use a protocol called LACP. The two stations (in your case the network switch, and the server) will send special LACP packets between all ports on the LAG to (among other things) detect which ports will be used in the LAG. One of the primary reasons for this is to ensure ports are not plugged in incorrectly and to prevent loops from occurring.
By default (on most vendors devices) if a port can not complete a LACP negotiation, it will default to not forward traffic. The "force-up" parameter you described overrides this behavior allows and puts the port in the forwarding state for a limited period of time. In order to use LACP on a bond in Linux, the bond mode has to be set to "8023ad". This can be set on the interface screen for the bond in foreman. If sounds like you found a solution to the problem? or are you still trying to find a way to provision without having to use the "force-up" option? --Perry On Wed, Nov 1, 2017 at 6:45 AM, Duncan Innes <[email protected]> wrote: > We regularly do PXE provisioning over ports that are generally configured > for bonding. The network guys have to set the force-up parameter (forgive > me if that's not absolutely accurate, but they translate my non-network > speak and get it working). This is on Juniper switches. > > The result is that the PXE can happen over one of the ports for a limited > time after the port comes up (the time here is configurable) before it > reverts to bonding-only operation. > > D > > On Wednesday, 25 October 2017 17:12:08 UTC+1, Jagga Soorma wrote: >> >> Hello, >> >> I have to provision a server via foreman that has lacp setup on the 2 >> switch ports it is connected to and the default fallback timeout is >> set too high which I cannot control. This means that I cannot >> provision the host using a single nic and have to setup a bond during >> the pxe process. I have tried to setup the bond in the interfaces >> section of my host when creating it in foreman but during pxe bootup >> it does not even seem to load the bonding driver and no bond interface >> is setup. Is this even possible using foreman? If so, can someone >> help me with this please. I have a urgent need to get this server up >> and any assistance would be greatly appreciated! >> >> Thanks in advance. >> -J >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "Foreman users" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/foreman-users/bWo9D5RtFn0/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/foreman-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Foreman users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/foreman-users. For more options, visit https://groups.google.com/d/optout.
